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Question

In order to find out the different types of gametes produced by pea plants having the genotype AaBb, it should be crossed to a plant with the genotype :

A
AaBb
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B
aabb
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C
AABB
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D
aaBB
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Solution

The correct option is B aabb
A test cross is a way to explore the genotype of an organism.
Early use of the test cross was as an experimental mating test used to determine what alleles are present in the genotype.
A test cross involving the crossing of F, individual with the homozygous recessive parent. It is done to find out homozygous and heterozygous individuals.
So AaBb should be crossed with aabb.

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